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Photo: Physics Central
Participation fee $0
Expenses $0
Spend the time outdoors
Location anywhere
Appropriate for kids yes
Teaching materials no


Required Gear:

Quarter, computer


Test the Fairness of US State Quarters


Test for the fairness of the new state quarters.
Flip quarters and report your heads and tails.

If you flip a quarter many times, it should land heads up just about as often as it lands tails up, assuming the coin is fair. But with so many different state designs, it's not clear that all U.S. quarters are fair. Help us check by taking a few moments to flip some quarters and report the results below.




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